MK1574-01ASTR IDT, Integrated Device Technology Inc, MK1574-01ASTR Datasheet - Page 8

• Manufacturer Part Number: MK1574-01ASTR
• Description: IC PLL FRAME RATE COMM 16-SOIC
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock/Frequency Synthesizerr

Specifications of MK1574-01ASTR

• Pll: Yes
• Input: Clock
• Output: CMOS
• Number Of Circuits: 1
• Ratio - Input:output: 1:3
• Differential - Input:output: No/No
• Divider/multiplier: No/Yes
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Frequency-max: -

Loop Filter Constants
This table shows the constants K1 and K2 that are used with the equations on page 6 to calculate the external loop filter
components.Loop Filter Contstants for MK1574-01A
PC Board Layout
Clock Multipliers/Accuracies
IDT™ / ICS™ FRAME RATE COMMUNICATIONS PLL
MK1574-01A/B
FRAME RATE COMMUNICATIONS PLL
Decode
FS3:0
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
A proper board layout is critical to the successful use of the MK1574-01A/B. In particular, the CAP1 and CAP2 pins
are very sensitive to noise and leakage (CAP1 at pin 4 is the most sensitive). Traces must be as short as possible
and the capacitor and resistor must be mounted next to the device as shown to the right. The capacitor connected
between pins 3 and 5 is the power supply decoupling capacitor. The high frequency output clocks on may benefit
from a series 33 resistor connected close to the pin (not shown).
In the table on page 2 are the actual multipliers stored in the MK1574-01A/B ROM, which yield the exact values
shown for the output clocks.
Address
(Hex)
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
Reserved
Reserved
Reserved
Reserved
0.0430
0.0527
0.0444
0.0454
0.0533
0.0410
0.0508
0.0587
0.0365
0.0420
0.0516
0.0594
Loop Filter Constants
K1
Reserved
Reserved
Reserved
Reserved
7.4
6.0
7.2
7.0
6.0
7.8
6.3
5.4
8.7
7.6
6.2
5.4
K2
8
MK1574-01A/B
CLOCK SYNTHESIZER
REV D 051310